The Religion and Philosophy of the Veda and Upanishads v1.c16.s4.4

v1.c16.s4.4

Viṣṇu is closely associated with Indra: one hymn is devoted to the pair of gods, and, when Viṣṇu is celebrated by himself, Indra is the only other god who is given a place; when about to perform his supreme feat of slaying Vṛtra, Indra implores Viṣṇu to step out more widely. Through his association with Indra, Viṣṇu becomes a drinker of Soma, and he cooks for Indra 100 buffaloes and a brew of milk. Through his connexion with Indra Viṣṇu also is associated with the Maruts, with whom he shares honour in one hymn.